Home / 1,316.96-1,973.62-494.40

Finding the Fourth Proportional to 1,316.96, 1,973.62 and 494.40

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Solution

The fourth proportional to 1,316.96, 1,973.62 and 494.40 is: 740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.96 : 1,973.62 = 494.40 : x
  2. Step 2: Convert to fraction form
    1,316.96/1,973.62 = 494.40/x
  3. Step 3: Cross multiply
    1,316.96x = 1,973.62 × 494.40
  4. Step 4: Simplify right side
    1,316.96x = 975,757.73
  5. Step 5: Solve for x
    x = 975,757.73/1,316.96
  6. Step 6: Final answer
    x = 740.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.